Log Message:
www/gnurl: Update to 7.66.0

Changelog:

CHANGELOG
---------

Changes, gnurl specific:

* Almost none, mostly a merge as usual. After a chat
  with bfix on IRC, the gnurl homepage has been extended
  to explain how to build it.

The usual curl Changelog applies, consult https://curl.haxx.se for the
ChangeLog.
curl Changelog:
 Changes:

    CURLINFO_RETRY_AFTER: parse the Retry-After header value
    HTTP3: initial (experimental still not working) support
    curl: --sasl-authzid added to support CURLOPT_SASL_AUTHZID from the tool
    curl: support parallel transfers with -Z
    curl_multi_poll: a sister to curl_multi_wait() that waits more
    sasl: Implement SASL authorisation identity via CURLOPT_SASL_AUTHZID

 Bugfixes:

    CVE-2019-5481: FTP-KRB double-free
    CVE-2019-5482: TFTP small blocksize heap buffer overflow
    CI: remove duplicate configure flag for LGTM.com
    CMake: remove needless newlines at end of gss variables
    CMake: use platform dependent name for dlopen() library
    CURLINFO docs: mention that in redirects times are added
    CURLOPT_ALTSVC.3: use a "" file name to not load from a file
    CURLOPT_ALTSVC_CTRL.3: remove CURLALTSVC_ALTUSED
    CURLOPT_HEADERFUNCTION.3: clarify
    CURLOPT_HTTP_VERSION: seting this to 3 forces HTTP/3 use directly
    CURLOPT_READFUNCTION.3: provide inline example
    CURLOPT_SSL_VERIFYHOST: treat the value 1 as 2
    Curl_addr2string: take an addrlen argument too
    Curl_fillreadbuffer: avoid double-free trailer buf on error
    HTTP: use chunked Transfer-Encoding for HTTP_POST if size unknown
    alt-svc: add protocol version selection masking
    alt-svc: fix removal of expired cache entry
    alt-svc: make it use h3-22 with ngtcp2 as well
    alt-svc: more liberal ALPN name parsing
    alt-svc: send Alt-Used: in redirected requests
    alt-svc: with quiche, use the quiche h3 alpn string
    appveyor: pass on -k to make
    asyn-thread: create a socketpair to wait on
    build-openssl: fix build with Visual Studio 2019
    cleanup: move functions out of url.c and make them static
    cleanup: remove the 'numsocks' argument used in many places
    configure: avoid undefined check_for_ca_bundle
    curl.h: add CURL_HTTP_VERSION_3 to the version enum
    curl.h: fix outdated comment
    curl: cap the maximum allowed values for retry time arguments
    curl: handle a libcurl build without netrc support
    curl: make use of CURLINFO_RETRY_AFTER when retrying
    curl: remove outdated comment
    curl: use .curlrc (with a dot) on Windows
    curl: use CURLINFO_PROTOCOL to check for HTTP(s)
    curl_global_init_mem.3: mention it was added in 7.12.0
    curl_version: bump string buffer size to 250
    curl_version_info.3: mentioned ALTSVC and HTTP3
    curl_version_info: offer quic (and h3) library info
    curl_version_info: provide nghttp2 details
    defines: avoid underscore-prefixed defines
    docs/ALTSVC: remove what works and the experimental explanation
    docs/EXPERIMENTAL: explain what it means and what's experimental now
    docs/MANUAL.md: converted to markdown from plain text
    docs/examples/curlx: fix errors
    docs: s/curl_debug/curl_dbg_debug in comments and docs
    easy: resize receive buffer on easy handle reset
    examples: Avoid reserved names in hiperfifo examples
    examples: add http3.c, altsvc.c and http3-present.c
    getenv: support up to 4K environment variable contents on windows
    http09: disable HTTP/0.9 by default in both tool and library
    http2: when marked for closure and wanted to close == OK
    http2_recv: trigger another read when the last data is returned
    http: fix use of credentials from URL when using HTTP proxy
    http_negotiate: improve handling of gss_init_sec_context() failures
    md4: Use our own MD4 when no crypto libraries are available
    multi: call detach_connection before Curl_disconnect
    netrc: make the code try ".netrc" on Windows
    nss: use TLSv1.3 as default if supported
    openssl: build warning free with boringssl
    openssl: use SSL_CTX_set__proto_version() when available
    plan9: add support for running on Plan 9
    progress: reset download/uploaded counter between transfers
    readwrite_data: repair setting the TIMER_STARTTRANSFER stamp
    scp: fix directory name length used in memcpy
    smb: init *msg to NULL in smb_send_and_recv()
    smtp: check for and bail out on too short EHLO response
    source: remove names from source comments
    spnego_sspi: add typecast to fix build warning
    src/makefile: fix uncompressed hugehelp.c generation
    ssh-libssh: do not specify O_APPEND when not in append mode
    ssh: move code into vssh for SSH backends
    sspi: fix memory leaks
    tests: Replace outdated test case numbering documentation
    tftp: return error when packet is too small for options
    timediff: make it 64 bit (if possible) even with 32 bit time_t
    travis: reduce number of torture tests in 'coverage'
    url: make use of new HTTP version if alt-svc has one
    urlapi: verify the IPv6 numerical address
    urldata: avoid 'generic', use dedicated pointers
    vauth: Use CURLE_AUTH_ERROR for auth function errors